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From "Simon Willnauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3090) DWFlushControl does not take active DWPT out of the loop on fullFlush
Date Mon, 16 May 2011 15:15:47 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13034053#comment-13034053
] 

Simon Willnauer commented on LUCENE-3090:
-----------------------------------------

I did 150 runs for all Lucene Tests incl. contrib - no failure so far. Seems to be good to
go.

> DWFlushControl does not take active DWPT out of the loop on fullFlush
> ---------------------------------------------------------------------
>
>                 Key: LUCENE-3090
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3090
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Index
>    Affects Versions: 4.0
>            Reporter: Simon Willnauer
>            Assignee: Simon Willnauer
>            Priority: Critical
>             Fix For: 4.0
>
>         Attachments: LUCENE-3090.patch, LUCENE-3090.patch, LUCENE-3090.patch
>
>
> We have seen several OOM on TestNRTThreads and all of them are caused by DWFlushControl
missing DWPT that are set as flushPending but can't full due to a full flush going on. Yet
that means that those DWPT are filling up in the background while they should actually be
checked out and blocked until the full flush finishes. Even further we currently stall on
the maxNumThreadStates while we should stall on the num of active thread states. I will attach
a patch tomorrow.

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